Question

All of the following would have to be considered if we found a human fossil in the Cambrian rock layer EXCEPT ___________________________.

A. our understanding of Earth’s conditions during the Cambrian Period may need to be altered

B. our understanding of human evolution may need to be altered

C. our understanding of the start of mammalian evolution may need to be altered

D. our understanding of vertebrate evolution could remain unchanged

Answer 1

i would have to say D because what would a fossil have to do with a neck bone but i might just not be understanding this